2699A, Type N, solid carbide, TiAlN coating, uneven angle of twist 35/38°, cutting tolerance f8, weldon flat (HB), shank tolerance h5, long, unequal pitch, with corner radius, number of teeth 4, DIN 6527L Application Roughing and finishing with the same tool. Higher material removal rate due to optimised cutting geometry. Features The uneven angle of twist actively reduces vibrations.